Improvement in sewing-machines



A. H. JONES.

' Sewing Machine.

' Patented March 20, 1860.

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UNITED STATES PATENT Oriana.

ABRAM H. JONES, OF FALLSINGTON, PENNSYLVANIA.

IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent No. 27,546, dated March 20,1860.

To (1 whom it may concern:

Be it known that I, ABRAM H. JONES, of Fallsington,Bucks county,Pennsylvania, have invented certain new an d useful Improvements inSewing-lllachines; and I do hereby declare the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

My invention consists of a shuttle-driver of the peculiar constructiondescribed hereinafter, whereby the shuttle may be released from andreplaced in a position to be acted upon by the said driver.

In order to enable others skilled in this class of machinery to make anduse my invention, I will now proceed to describe its construction andoperation.

7 On reference to the accompanying drawings, which form a part of thisspecification, Figure 1 is a side view of my improved sewing-machine,Fig. 2, the same with part of the frame-work removed and the workingparts in a position differing from that illustrated in Fig. 1; Fig. 8, asectional. view of the machine in a position the reverse of that shownin Figs. 1 and 2; Fig. 4', a transverse sectional elevation on the line1 2, Fig. 3; Fig. 5, an inverted plan view of the machine with a portionof the same shown in section, and Fig. 6 .a detached view of the shuttleand shuttle-driver.

Similar letters refer to similar parts throughout the several views.

A is the base of the machine; B, the stationary arm secured to the same;0, the driving-shaft turning in projections to a on the under side ofthe base, and provided with a suitable driving-pulley, b, as well aswith a scroll cam-wheel, D, for operating the shuttle-arm.

E is the needle-arm, hung to a projection, c, on the base, and having aslot, d, of peculiar form, into which fits a roller hung loosely on apin, 6, the latter being attached to the face of the cam-wheel D at anappropriate distance from its center. This needle-arm is guidedlaterally by a plate, f, attached to the stationary arm B, and isprovided with an arm, F, which is controlled by a spring, G, a suitablecurved needle, h, being attached to the outer end of the needle-arm.

A spring, H, is attached to the top of the stationary arm B, and to thisis secured a bar,

\ I, by means of a screw, 1', the form and relative position of thespring and the bar being best observed on reference to Figs. 1 and 3.

The end of the stationaryarm has the usual spring-pressure bars, J,furnished at the bottom with the ordinary pad, and at the top with anarm, j, by operating which the said pressure-pad may be raised andlowered at pleasure.

K is the shuttlearm, hung to a pin, k, on the under side of the base A,a projection on the end of the short arm fitting into the groove of thecam-wheel D, and the forked end of the long arm of the same levercatching over a pin on the bar L of the shuttle-carrier, which slides ina race, Z, adjacent and parallel to the race on of the shuttle, bothraces being formed in one plate, M, attached to the under side of thebase A. The shuttle is pointed at both ends, and the shuttle-driver,which is best observed on reference to Fig. 6, has a permanentprojection, a, on the slide L for catching against a shoulder near oneend of the shuttle, an arm, 1), being hung to a pin 011 the slide insuch a manner as to be readily vibrated on the said pin, so that itsbent end may be caused to strike against the shoulder of the shuttlesopposite to the shoulder against which the projection it strikes, and sothat it may be turned laterally free from the said shoulder, and thusallow the shuttle to be readily withdrawn from contact with the driverand from the race, and as readily replaced. The shuttle is of theordinary hollow-case construction, and is provided with the usual spooland any suitable appliances for imparting the necessary tension to thespool-thread.

N is the feed-bar, having a projection, q, with a serrated upper edgepassing through an opening in the base A, directlyunder thepressure-pad, and being connected at one end to a permanent projectionon the base by means of a spiral spring, r, the opposite forked endsliding on a pin, 3, which screws into the base or into the plate M, andwhich has a collar, 1, which limits the inward movement of the barcaused by the spiral spring 1-.

The outward movement of the bar is caused by the pin e on'the face ofthe canrwheel D, the end of the pin striking against the inclined planea of the arm P, which is hung to a pin, Q, on the under side of the baseA, and the outer end of which is loosely connected to the feed-bar N.the latter is caused by a spring, R, attached to the needle-arm E, theend of the spring striking against the under side of the arm P.

The needle-thread passes from a spool which may be connected to anystationary part of the machine, along the side of the bar I, under thelatter, upward through a hole in the bar, and downward through anotherhole,-the bent end of the spring bearing on that portion of the threadwhich passes from one hole to the other on the top of the bar. From thelatter the thread passes to an eye in the lever by which thepressure-bar is raised, thence through an eye, :10, 011 the end of thestationary arm 13, and thence through an eye in the spring-arm F to theeye of the needle.

The slot dis of such a form and is so arranged in respect to the centerof the drivingshaft and its pin 6, as well as in respect to the centerof vibration of the needle-arm,that the latter will make one completevibration during one complete revolution of the drivingshaft, thevibration being always in the same be turned to the right or to theleft. words, should the direction of the motion of the driving-shaft beaccidentally changed, the

The upward movement of regular vibration of the needle-arm at the properintervals and in the proper direction will not be interrupted.

The operation of the feed-bar and its action on the cloth, as well asthe mode of regulating the extent of its movement by the adjustingscrew8, will be readily understood by those familiar with sewing-machineswithout further description.

It will also be seen without further explanation that by moving thearm 1) the shuttle may be readily released from the driver and as easilyreplaced in connection with the same.

I claim as my invention and desire to secure by Letters Patent- Thereciprocating slide L, its permanent projection n, and the movable bentarm 1), in combination with and arranged in respect to thedouble-pointed shuttle, as and for the purpose herein set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. direction, no matter whether thedriving-shaft i In other AER-AM H. JONES. \Vitnesses:

HENRY HowsoN, CHARLES D. FREEMAN.

